Renwick is located close to the center of Iowa. Renwick is between the Humboldt, Wright county. Renwick has 1.00 square miles of land area and has no water area. As of 2010-2014, the total Renwick population is 317, which has grown 3.59% since 2000. The population growth rate is lower than the state average rate of 5.19% and is much lower than the national average rate of 11.61%. Renwick median household income is $40,865 in 2010-2014 and has grown by 22.60% since 2000. The income growth rate is lower than the state average rate of 33.56% and is lower than the national average rate of 27.36%. Renwick median house value is $45,000 in 2010-2014 and has grown by 27.84% since 2000. The house value growth rate is much lower than the state average rate of 53.09% and is much lower than the national average rate of 46.91%. As a reference, the national Consumer Price Index (CPI) inflation rate for the same period is 26.63%. On average, the public school district that covers Renwick is much better than the state average in quality. The Renwick area code is 515.